Clubbed thumb

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Clubbed thumb
Clubbed thumb.jpg
Top view of a child with asymmetric clubbed thumb.
Classification and external resources
Side view of a child with asymmetric clubbed thumb

A clubbed thumb or stub thumb, known clinically as brachydactyly type D (BDD),[1] is a genetic trait characterized by the last bone of one or both thumbs being short and round with an accompanying short and wide nail bed.[2]

Other names[edit]

The condition is sometimes known as potter's thumb.[1] It has also been called murderer's thumb, a term coined by fortune-tellers.[3]

See also[edit]


  1. ^ a b Online 'Mendelian Inheritance in Man' (OMIM) Brachydactyly, Type D; BDD. -113200
  2. ^ Alessandro Castriota-Scanderbeg, Bruno Dallapiccola (2005). Abnormal Skeletal Phenotypes: From Simple Signs to Complex Diagnoses. Springer. p. 962. ISBN 3540679979. 
  3. ^ "The Curious Case of the Stubby Thumb". Science in Society Blog. 2011-11-03. Retrieved 2013-03-15.